Tenderloin Steak (Porterhouse or Rib-eye) • Salt and Pepper to Taste • Steak Seasoning • butter (more, as needed) • Beef Cubes • Dried Shitake Mushroom (or more, if desired). Soak in water for 2 hours before cooking. Drain and set aside water. The water will be use for the gravy sauce • medium sized onions (minced) • fresh milk • Worcestershire sauce • brown sugar • flour • water for gravy (as needed) •